.bgm-collection {
    margin: 0 auto;
    display: flex;
    flex-flow: row wrap;
    margin-left: -15px;
    width: calc(100% + 15px);
}

.bgm-item {
    display: block;
    margin-left: 15px;
    margin-bottom: 15px;
    position: relative;
    border-radius: 18px;
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.2);
    transition: 0.3s ease box-shadow;
    border: none !important;
    text-decoration: none !important;
}

.bgm-item:hover {
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
    border: none !important;
    text-decoration: none !important;
}

@media screen and (max-width:767.5px) {
    .bgm-item {
        width: calc(33.33333333333% - 15px)
    }
}

@media screen and (max-width:450px) {
    .bgm-item {
        width: calc(50% - 15px)
    }
}

@media screen and (min-width:767.5px) {
    .bgm-item {
        width: calc(25% - 15px)
    }
}

.bgm-item-thumb {
    width: 100%;
    padding-top: 120%;
    border-top-left-radius: 18px;
    border-top-right-radius: 18px;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.bgm-item-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0.5rem;
    overflow: hidden;
    border-bottom-left-radius: 18px;
    border-bottom-right-radius: 18px;
}

.bgm-item-info>* {
    display: block;
    text-align: center;
    margin: 0 auto;
    max-width: 100%;
}

.bgm-item-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.9rem;
    color: #333
}

.bgm-item-title:not(.main) {
    color: #5e5b5c;
}

.bgm-item-title.main {
    font-size: 1.2rem;
}

.bgm-item-statusBar-container {
    margin: 0.2rem auto;
    padding: 0.2em;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    width: 100%;
    position: relative;
    z-index: 0;
    color: #333;
}

.bgm-item-statusBar {
    position: absolute;
    height: 100%;
    background: lightskyblue;
    border-radius: 10px;
    left: 0;
    top: 0;
    z-index: -1;
}

.loader {
    text-align: center;
    padding: 0.3em;
    width: 6.5em;
    margin: 1.2rem auto;
    border-radius: 4px;
    border: 3px solid rgba(0, 0, 0, 0.2);
    color: #333;
    transition: 0.3s ease all;
    cursor: pointer;
    white-space: nowrap;
}

.theme-dark .bgm-item-statusBar-container {color: #999}

.theme-dark .bgm-item-statusBar {color: #bbb}

.theme-dark .bgm-item-info {
    color: #b0b0b0;
    background: #222
}

body.theme-dark .bgm-item-title.main {color: #bbb}

body.theme-dark .bgm-item-thumb {filter: brightness(66%)}

body.theme-dark .loader:hover {
    border: 3px solid #bbb;
    color: #bbb
}

body.theme-dark .dot {color:#bbb}

body.theme-dark .loader {
    border: 3px solid rgba(255, 255, 255, 0.2);
    color: #b0b0b0
}

.loader:hover,
body.theme-dark .loader:hover {
    border: 3px solid lightskyblue;
    color: lightskyblue;
}

.dot {
    width: 8px;
    height: 8px;
    background: lightskyblue;
    border-radius: 100%;
    display: inline-block;
    -webkit-animation: slide 1s infinite;
    animation: slide 1s infinite;
    margin: 0 10px
}

.dot:nth-child(1) {
    -webkit-animation-delay: .1s;
    animation-delay: .1s;
}

.dot:nth-child(2) {
    -webkit-animation-delay: .2s;
    animation-delay: .2s;
}

.dot:nth-child(3) {
    -webkit-animation-delay: .3s;
    animation-delay: .3s;
}

@-webkit-keyframes slide {
    0% {
        -webkit-transform: scale(1);
        transform: scale(1)
    }

    50% {
        opacity: .3;
        -webkit-transform: scale(2);
        transform: scale(2)
    }

    100% {
        -webkit-transform: scale(1);
        transform: scale(1)
    }
}

@keyframes slide {
    0% {
        -webkit-transform: scale(1);
        transform: scale(1)
    }

    50% {
        opacity: .3;
        -webkit-transform: scale(2);
        transform: scale(2)
    }

    100% {
        -webkit-transform: scale(1);
        transform: scale(1)
    }
}